pop3ml is a program to manage mailing lists and newsletters without a local SMTP server. It requires only a simple POP3 email account. It's highly configurable by users. You can subscribe or unsubscribe simply with email messages. There is optional subscription and unsubscription confirmation, subscription moderation, message moderation, digest message mode, parent/children list management, mail scheduling to postpone or repeat a message, a mail filter (with a procmail-like syntax), a message queue for unsent messages, message size check, a command to retrieve messages, bounce detection, message header management, black/white/allow/deny lists, and other functions. There is also a program to test list settings without sending any messages and another program to view and search through stored messages. You can configure it with programs like phpMyAdmin.

File upload and validation class is a PHP class that can be used to validate and process uploaded files. It can validate a given uploaded file by checking its MIME type or its original file type, and by checking its file size against a given limit and file type. It currently supports audio, video, PDF, and image file uploads. The class can create a path in the server as well.

xhtml_parte is a class for parsing HTML using regular expressions to validate it and extract parts, given identifier attribute values of the tags that should be extracted. It can also be used to insert and delete tags at specified positions or with certain characteristics.

VAT Checker for EU countries is a simple PHP class to check the validity of a VAT number from the European Union countries. It provides a single function that accepts a VAT number and a 2-letter country abbreviation as input and returns a boolean value to indicate whether the number is valid.

SimpleGMapAPI is a PHP class for using the Google Maps API (and Google's and OpenStreetMaps' geocoding APIs) in your PHP code and to display Google Maps easily on your site, with support for StreetView. simpleGMapAPI is derived from Phoogle Maps 2.0.